Just adjust your privacy settings and of course, be careful what you put on there. If grandma can see it then it's okay. You never know who in your class with be competing with you for a job and may use something on facebook against you- probably wont happen but it could. Looking through a lot of the 2Ls and 3Ls at my future law school, I am suprised at what people put on their page- especially when I can see it!- I'm not friends with them, just in the same network, and, well I doubt I would hire anyone with any of that stuff.